1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Porting to u-boot:
4 *
5 * (C) Copyright 2010
6 * Stefano Babic, DENX Software Engineering, sbabic@denx.de
7 *
8 * Linux IPU driver for MX51:
9 *
10 * (C) Copyright 2005-2010 Freescale Semiconductor, Inc.
11 */
12
13 /* #define DEBUG */
14
15 #include <common.h>
16 #include <log.h>
17 #include <linux/delay.h>
18 #include <linux/types.h>
19 #include <linux/errno.h>
20 #include <asm/io.h>
21 #include <asm/arch/imx-regs.h>
22 #include <asm/arch/sys_proto.h>
23 #include "ipu.h"
24 #include "ipu_regs.h"
25
26 enum csc_type_t {
27 RGB2YUV = 0,
28 YUV2RGB,
29 RGB2RGB,
30 YUV2YUV,
31 CSC_NONE,
32 CSC_NUM
33 };
34
35 struct dp_csc_param_t {
36 int mode;
37 const int (*coeff)[5][3];
38 };
39
40 #define SYNC_WAVE 0
41
42 /* DC display ID assignments */
43 #define DC_DISP_ID_SYNC(di) (di)
44 #define DC_DISP_ID_SERIAL 2
45 #define DC_DISP_ID_ASYNC 3
46
47 int dmfc_type_setup;
48 static int dmfc_size_28, dmfc_size_29, dmfc_size_24, dmfc_size_27, dmfc_size_23;
49 int g_di1_tvout;
50
51 extern struct clk *g_ipu_clk;
52 extern struct clk *g_ldb_clk;
53 extern struct clk *g_di_clk[2];
54 extern struct clk *g_pixel_clk[2];
55
56 extern unsigned char g_ipu_clk_enabled;
57 extern unsigned char g_dc_di_assignment[];
58
ipu_dmfc_init(int dmfc_type,int first)59 void ipu_dmfc_init(int dmfc_type, int first)
60 {
61 u32 dmfc_wr_chan, dmfc_dp_chan;
62
63 if (first) {
64 if (dmfc_type_setup > dmfc_type)
65 dmfc_type = dmfc_type_setup;
66 else
67 dmfc_type_setup = dmfc_type;
68
69 /* disable DMFC-IC channel*/
70 __raw_writel(0x2, DMFC_IC_CTRL);
71 } else if (dmfc_type_setup >= DMFC_HIGH_RESOLUTION_DC) {
72 printf("DMFC high resolution has set, will not change\n");
73 return;
74 } else
75 dmfc_type_setup = dmfc_type;
76
77 if (dmfc_type == DMFC_HIGH_RESOLUTION_DC) {
78 /* 1 - segment 0~3;
79 * 5B - segement 4, 5;
80 * 5F - segement 6, 7;
81 * 1C, 2C and 6B, 6F unused;
82 */
83 debug("IPU DMFC DC HIGH RES: 1(0~3), 5B(4,5), 5F(6,7)\n");
84 dmfc_wr_chan = 0x00000088;
85 dmfc_dp_chan = 0x00009694;
86 dmfc_size_28 = 256 * 4;
87 dmfc_size_29 = 0;
88 dmfc_size_24 = 0;
89 dmfc_size_27 = 128 * 4;
90 dmfc_size_23 = 128 * 4;
91 } else if (dmfc_type == DMFC_HIGH_RESOLUTION_DP) {
92 /* 1 - segment 0, 1;
93 * 5B - segement 2~5;
94 * 5F - segement 6,7;
95 * 1C, 2C and 6B, 6F unused;
96 */
97 debug("IPU DMFC DP HIGH RES: 1(0,1), 5B(2~5), 5F(6,7)\n");
98 dmfc_wr_chan = 0x00000090;
99 dmfc_dp_chan = 0x0000968a;
100 dmfc_size_28 = 128 * 4;
101 dmfc_size_29 = 0;
102 dmfc_size_24 = 0;
103 dmfc_size_27 = 128 * 4;
104 dmfc_size_23 = 256 * 4;
105 } else if (dmfc_type == DMFC_HIGH_RESOLUTION_ONLY_DP) {
106 /* 5B - segement 0~3;
107 * 5F - segement 4~7;
108 * 1, 1C, 2C and 6B, 6F unused;
109 */
110 debug("IPU DMFC ONLY-DP HIGH RES: 5B(0~3), 5F(4~7)\n");
111 dmfc_wr_chan = 0x00000000;
112 dmfc_dp_chan = 0x00008c88;
113 dmfc_size_28 = 0;
114 dmfc_size_29 = 0;
115 dmfc_size_24 = 0;
116 dmfc_size_27 = 256 * 4;
117 dmfc_size_23 = 256 * 4;
118 } else {
119 /* 1 - segment 0, 1;
120 * 5B - segement 4, 5;
121 * 5F - segement 6, 7;
122 * 1C, 2C and 6B, 6F unused;
123 */
124 debug("IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)\n");
125 dmfc_wr_chan = 0x00000090;
126 dmfc_dp_chan = 0x00009694;
127 dmfc_size_28 = 128 * 4;
128 dmfc_size_29 = 0;
129 dmfc_size_24 = 0;
130 dmfc_size_27 = 128 * 4;
131 dmfc_size_23 = 128 * 4;
132 }
133 __raw_writel(dmfc_wr_chan, DMFC_WR_CHAN);
134 __raw_writel(0x202020F6, DMFC_WR_CHAN_DEF);
135 __raw_writel(dmfc_dp_chan, DMFC_DP_CHAN);
136 /* Enable chan 5 watermark set at 5 bursts and clear at 7 bursts */
137 __raw_writel(0x2020F6F6, DMFC_DP_CHAN_DEF);
138 }
139
ipu_dmfc_set_wait4eot(int dma_chan,int width)140 void ipu_dmfc_set_wait4eot(int dma_chan, int width)
141 {
142 u32 dmfc_gen1 = __raw_readl(DMFC_GENERAL1);
143
144 if (width >= HIGH_RESOLUTION_WIDTH) {
145 if (dma_chan == 23)
146 ipu_dmfc_init(DMFC_HIGH_RESOLUTION_DP, 0);
147 else if (dma_chan == 28)
148 ipu_dmfc_init(DMFC_HIGH_RESOLUTION_DC, 0);
149 }
150
151 if (dma_chan == 23) { /*5B*/
152 if (dmfc_size_23 / width > 3)
153 dmfc_gen1 |= 1UL << 20;
154 else
155 dmfc_gen1 &= ~(1UL << 20);
156 } else if (dma_chan == 24) { /*6B*/
157 if (dmfc_size_24 / width > 1)
158 dmfc_gen1 |= 1UL << 22;
159 else
160 dmfc_gen1 &= ~(1UL << 22);
161 } else if (dma_chan == 27) { /*5F*/
162 if (dmfc_size_27 / width > 2)
163 dmfc_gen1 |= 1UL << 21;
164 else
165 dmfc_gen1 &= ~(1UL << 21);
166 } else if (dma_chan == 28) { /*1*/
167 if (dmfc_size_28 / width > 2)
168 dmfc_gen1 |= 1UL << 16;
169 else
170 dmfc_gen1 &= ~(1UL << 16);
171 } else if (dma_chan == 29) { /*6F*/
172 if (dmfc_size_29 / width > 1)
173 dmfc_gen1 |= 1UL << 23;
174 else
175 dmfc_gen1 &= ~(1UL << 23);
176 }
177
178 __raw_writel(dmfc_gen1, DMFC_GENERAL1);
179 }
180
ipu_di_data_wave_config(int di,int wave_gen,int access_size,int component_size)181 static void ipu_di_data_wave_config(int di,
182 int wave_gen,
183 int access_size, int component_size)
184 {
185 u32 reg;
186 reg = (access_size << DI_DW_GEN_ACCESS_SIZE_OFFSET) |
187 (component_size << DI_DW_GEN_COMPONENT_SIZE_OFFSET);
188 __raw_writel(reg, DI_DW_GEN(di, wave_gen));
189 }
190
ipu_di_data_pin_config(int di,int wave_gen,int di_pin,int set,int up,int down)191 static void ipu_di_data_pin_config(int di, int wave_gen, int di_pin, int set,
192 int up, int down)
193 {
194 u32 reg;
195
196 reg = __raw_readl(DI_DW_GEN(di, wave_gen));
197 reg &= ~(0x3 << (di_pin * 2));
198 reg |= set << (di_pin * 2);
199 __raw_writel(reg, DI_DW_GEN(di, wave_gen));
200
201 __raw_writel((down << 16) | up, DI_DW_SET(di, wave_gen, set));
202 }
203
ipu_di_sync_config(int di,int wave_gen,int run_count,int run_src,int offset_count,int offset_src,int repeat_count,int cnt_clr_src,int cnt_polarity_gen_en,int cnt_polarity_clr_src,int cnt_polarity_trigger_src,int cnt_up,int cnt_down)204 static void ipu_di_sync_config(int di, int wave_gen,
205 int run_count, int run_src,
206 int offset_count, int offset_src,
207 int repeat_count, int cnt_clr_src,
208 int cnt_polarity_gen_en,
209 int cnt_polarity_clr_src,
210 int cnt_polarity_trigger_src,
211 int cnt_up, int cnt_down)
212 {
213 u32 reg;
214
215 if ((run_count >= 0x1000) || (offset_count >= 0x1000) ||
216 (repeat_count >= 0x1000) ||
217 (cnt_up >= 0x400) || (cnt_down >= 0x400)) {
218 printf("DI%d counters out of range.\n", di);
219 return;
220 }
221
222 reg = (run_count << 19) | (++run_src << 16) |
223 (offset_count << 3) | ++offset_src;
224 __raw_writel(reg, DI_SW_GEN0(di, wave_gen));
225 reg = (cnt_polarity_gen_en << 29) | (++cnt_clr_src << 25) |
226 (++cnt_polarity_trigger_src << 12) | (++cnt_polarity_clr_src << 9);
227 reg |= (cnt_down << 16) | cnt_up;
228 if (repeat_count == 0) {
229 /* Enable auto reload */
230 reg |= 0x10000000;
231 }
232 __raw_writel(reg, DI_SW_GEN1(di, wave_gen));
233 reg = __raw_readl(DI_STP_REP(di, wave_gen));
234 reg &= ~(0xFFFF << (16 * ((wave_gen - 1) & 0x1)));
235 reg |= repeat_count << (16 * ((wave_gen - 1) & 0x1));
236 __raw_writel(reg, DI_STP_REP(di, wave_gen));
237 }
238
ipu_dc_map_config(int map,int byte_num,int offset,int mask)239 static void ipu_dc_map_config(int map, int byte_num, int offset, int mask)
240 {
241 int ptr = map * 3 + byte_num;
242 u32 reg;
243
244 reg = __raw_readl(DC_MAP_CONF_VAL(ptr));
245 reg &= ~(0xFFFF << (16 * (ptr & 0x1)));
246 reg |= ((offset << 8) | mask) << (16 * (ptr & 0x1));
247 __raw_writel(reg, DC_MAP_CONF_VAL(ptr));
248
249 reg = __raw_readl(DC_MAP_CONF_PTR(map));
250 reg &= ~(0x1F << ((16 * (map & 0x1)) + (5 * byte_num)));
251 reg |= ptr << ((16 * (map & 0x1)) + (5 * byte_num));
252 __raw_writel(reg, DC_MAP_CONF_PTR(map));
253 }
254
ipu_dc_map_clear(int map)255 static void ipu_dc_map_clear(int map)
256 {
257 u32 reg = __raw_readl(DC_MAP_CONF_PTR(map));
258 __raw_writel(reg & ~(0xFFFF << (16 * (map & 0x1))),
259 DC_MAP_CONF_PTR(map));
260 }
261
ipu_dc_write_tmpl(int word,u32 opcode,u32 operand,int map,int wave,int glue,int sync)262 static void ipu_dc_write_tmpl(int word, u32 opcode, u32 operand, int map,
263 int wave, int glue, int sync)
264 {
265 u32 reg;
266 int stop = 1;
267
268 reg = sync;
269 reg |= (glue << 4);
270 reg |= (++wave << 11);
271 reg |= (++map << 15);
272 reg |= (operand << 20) & 0xFFF00000;
273 __raw_writel(reg, ipu_dc_tmpl_reg + word * 2);
274
275 reg = (operand >> 12);
276 reg |= opcode << 4;
277 reg |= (stop << 9);
278 __raw_writel(reg, ipu_dc_tmpl_reg + word * 2 + 1);
279 }
280
ipu_dc_link_event(int chan,int event,int addr,int priority)281 static void ipu_dc_link_event(int chan, int event, int addr, int priority)
282 {
283 u32 reg;
284
285 reg = __raw_readl(DC_RL_CH(chan, event));
286 reg &= ~(0xFFFF << (16 * (event & 0x1)));
287 reg |= ((addr << 8) | priority) << (16 * (event & 0x1));
288 __raw_writel(reg, DC_RL_CH(chan, event));
289 }
290
291 /* Y = R * 1.200 + G * 2.343 + B * .453 + 0.250;
292 * U = R * -.672 + G * -1.328 + B * 2.000 + 512.250.;
293 * V = R * 2.000 + G * -1.672 + B * -.328 + 512.250.;
294 */
295 static const int rgb2ycbcr_coeff[5][3] = {
296 {0x4D, 0x96, 0x1D},
297 {0x3D5, 0x3AB, 0x80},
298 {0x80, 0x395, 0x3EB},
299 {0x0000, 0x0200, 0x0200}, /* B0, B1, B2 */
300 {0x2, 0x2, 0x2}, /* S0, S1, S2 */
301 };
302
303 /* R = (1.164 * (Y - 16)) + (1.596 * (Cr - 128));
304 * G = (1.164 * (Y - 16)) - (0.392 * (Cb - 128)) - (0.813 * (Cr - 128));
305 * B = (1.164 * (Y - 16)) + (2.017 * (Cb - 128);
306 */
307 static const int ycbcr2rgb_coeff[5][3] = {
308 {0x095, 0x000, 0x0CC},
309 {0x095, 0x3CE, 0x398},
310 {0x095, 0x0FF, 0x000},
311 {0x3E42, 0x010A, 0x3DD6}, /*B0,B1,B2 */
312 {0x1, 0x1, 0x1}, /*S0,S1,S2 */
313 };
314
315 #define mask_a(a) ((u32)(a) & 0x3FF)
316 #define mask_b(b) ((u32)(b) & 0x3FFF)
317
318 /* Pls keep S0, S1 and S2 as 0x2 by using this convertion */
rgb_to_yuv(int n,int red,int green,int blue)319 static int rgb_to_yuv(int n, int red, int green, int blue)
320 {
321 int c;
322 c = red * rgb2ycbcr_coeff[n][0];
323 c += green * rgb2ycbcr_coeff[n][1];
324 c += blue * rgb2ycbcr_coeff[n][2];
325 c /= 16;
326 c += rgb2ycbcr_coeff[3][n] * 4;
327 c += 8;
328 c /= 16;
329 if (c < 0)
330 c = 0;
331 if (c > 255)
332 c = 255;
333 return c;
334 }
335
336 /*
337 * Row is for BG: RGB2YUV YUV2RGB RGB2RGB YUV2YUV CSC_NONE
338 * Column is for FG: RGB2YUV YUV2RGB RGB2RGB YUV2YUV CSC_NONE
339 */
340 static struct dp_csc_param_t dp_csc_array[CSC_NUM][CSC_NUM] = {
341 {
342 {DP_COM_CONF_CSC_DEF_BOTH, &rgb2ycbcr_coeff},
343 {0, 0},
344 {0, 0},
345 {DP_COM_CONF_CSC_DEF_BG, &rgb2ycbcr_coeff},
346 {DP_COM_CONF_CSC_DEF_BG, &rgb2ycbcr_coeff}
347 },
348 {
349 {0, 0},
350 {DP_COM_CONF_CSC_DEF_BOTH, &ycbcr2rgb_coeff},
351 {DP_COM_CONF_CSC_DEF_BG, &ycbcr2rgb_coeff},
352 {0, 0},
353 {DP_COM_CONF_CSC_DEF_BG, &ycbcr2rgb_coeff}
354 },
355 {
356 {0, 0},
357 {DP_COM_CONF_CSC_DEF_FG, &ycbcr2rgb_coeff},
358 {0, 0},
359 {0, 0},
360 {0, 0}
361 },
362 {
363 {DP_COM_CONF_CSC_DEF_FG, &rgb2ycbcr_coeff},
364 {0, 0},
365 {0, 0},
366 {0, 0},
367 {0, 0}
368 },
369 {
370 {DP_COM_CONF_CSC_DEF_FG, &rgb2ycbcr_coeff},
371 {DP_COM_CONF_CSC_DEF_FG, &ycbcr2rgb_coeff},
372 {0, 0},
373 {0, 0},
374 {0, 0}
375 }
376 };
377
378 static enum csc_type_t fg_csc_type = CSC_NONE, bg_csc_type = CSC_NONE;
379 static int color_key_4rgb = 1;
380
ipu_dp_csc_setup(int dp,struct dp_csc_param_t dp_csc_param,unsigned char srm_mode_update)381 static void ipu_dp_csc_setup(int dp, struct dp_csc_param_t dp_csc_param,
382 unsigned char srm_mode_update)
383 {
384 u32 reg;
385 const int (*coeff)[5][3];
386
387 if (dp_csc_param.mode >= 0) {
388 reg = __raw_readl(DP_COM_CONF());
389 reg &= ~DP_COM_CONF_CSC_DEF_MASK;
390 reg |= dp_csc_param.mode;
391 __raw_writel(reg, DP_COM_CONF());
392 }
393
394 coeff = dp_csc_param.coeff;
395
396 if (coeff) {
397 __raw_writel(mask_a((*coeff)[0][0]) |
398 (mask_a((*coeff)[0][1]) << 16), DP_CSC_A_0());
399 __raw_writel(mask_a((*coeff)[0][2]) |
400 (mask_a((*coeff)[1][0]) << 16), DP_CSC_A_1());
401 __raw_writel(mask_a((*coeff)[1][1]) |
402 (mask_a((*coeff)[1][2]) << 16), DP_CSC_A_2());
403 __raw_writel(mask_a((*coeff)[2][0]) |
404 (mask_a((*coeff)[2][1]) << 16), DP_CSC_A_3());
405 __raw_writel(mask_a((*coeff)[2][2]) |
406 (mask_b((*coeff)[3][0]) << 16) |
407 ((*coeff)[4][0] << 30), DP_CSC_0());
408 __raw_writel(mask_b((*coeff)[3][1]) | ((*coeff)[4][1] << 14) |
409 (mask_b((*coeff)[3][2]) << 16) |
410 ((*coeff)[4][2] << 30), DP_CSC_1());
411 }
412
413 if (srm_mode_update) {
414 reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
415 __raw_writel(reg, IPU_SRM_PRI2);
416 }
417 }
418
ipu_dp_init(ipu_channel_t channel,uint32_t in_pixel_fmt,uint32_t out_pixel_fmt)419 int ipu_dp_init(ipu_channel_t channel, uint32_t in_pixel_fmt,
420 uint32_t out_pixel_fmt)
421 {
422 int in_fmt, out_fmt;
423 int dp;
424 int partial = 0;
425 uint32_t reg;
426
427 if (channel == MEM_FG_SYNC) {
428 dp = DP_SYNC;
429 partial = 1;
430 } else if (channel == MEM_BG_SYNC) {
431 dp = DP_SYNC;
432 partial = 0;
433 } else if (channel == MEM_BG_ASYNC0) {
434 dp = DP_ASYNC0;
435 partial = 0;
436 } else {
437 return -EINVAL;
438 }
439
440 in_fmt = format_to_colorspace(in_pixel_fmt);
441 out_fmt = format_to_colorspace(out_pixel_fmt);
442
443 if (partial) {
444 if (in_fmt == RGB) {
445 if (out_fmt == RGB)
446 fg_csc_type = RGB2RGB;
447 else
448 fg_csc_type = RGB2YUV;
449 } else {
450 if (out_fmt == RGB)
451 fg_csc_type = YUV2RGB;
452 else
453 fg_csc_type = YUV2YUV;
454 }
455 } else {
456 if (in_fmt == RGB) {
457 if (out_fmt == RGB)
458 bg_csc_type = RGB2RGB;
459 else
460 bg_csc_type = RGB2YUV;
461 } else {
462 if (out_fmt == RGB)
463 bg_csc_type = YUV2RGB;
464 else
465 bg_csc_type = YUV2YUV;
466 }
467 }
468
469 /* Transform color key from rgb to yuv if CSC is enabled */
470 reg = __raw_readl(DP_COM_CONF());
471 if (color_key_4rgb && (reg & DP_COM_CONF_GWCKE) &&
472 (((fg_csc_type == RGB2YUV) && (bg_csc_type == YUV2YUV)) ||
473 ((fg_csc_type == YUV2YUV) && (bg_csc_type == RGB2YUV)) ||
474 ((fg_csc_type == YUV2YUV) && (bg_csc_type == YUV2YUV)) ||
475 ((fg_csc_type == YUV2RGB) && (bg_csc_type == YUV2RGB)))) {
476 int red, green, blue;
477 int y, u, v;
478 uint32_t color_key = __raw_readl(DP_GRAPH_WIND_CTRL()) &
479 0xFFFFFFL;
480
481 debug("_ipu_dp_init color key 0x%x need change to yuv fmt!\n",
482 color_key);
483
484 red = (color_key >> 16) & 0xFF;
485 green = (color_key >> 8) & 0xFF;
486 blue = color_key & 0xFF;
487
488 y = rgb_to_yuv(0, red, green, blue);
489 u = rgb_to_yuv(1, red, green, blue);
490 v = rgb_to_yuv(2, red, green, blue);
491 color_key = (y << 16) | (u << 8) | v;
492
493 reg = __raw_readl(DP_GRAPH_WIND_CTRL()) & 0xFF000000L;
494 __raw_writel(reg | color_key, DP_GRAPH_WIND_CTRL());
495 color_key_4rgb = 0;
496
497 debug("_ipu_dp_init color key change to yuv fmt 0x%x!\n",
498 color_key);
499 }
500
501 ipu_dp_csc_setup(dp, dp_csc_array[bg_csc_type][fg_csc_type], 1);
502
503 return 0;
504 }
505
ipu_dp_uninit(ipu_channel_t channel)506 void ipu_dp_uninit(ipu_channel_t channel)
507 {
508 int dp;
509 int partial = 0;
510
511 if (channel == MEM_FG_SYNC) {
512 dp = DP_SYNC;
513 partial = 1;
514 } else if (channel == MEM_BG_SYNC) {
515 dp = DP_SYNC;
516 partial = 0;
517 } else if (channel == MEM_BG_ASYNC0) {
518 dp = DP_ASYNC0;
519 partial = 0;
520 } else {
521 return;
522 }
523
524 if (partial)
525 fg_csc_type = CSC_NONE;
526 else
527 bg_csc_type = CSC_NONE;
528
529 ipu_dp_csc_setup(dp, dp_csc_array[bg_csc_type][fg_csc_type], 0);
530 }
531
ipu_dc_init(int dc_chan,int di,unsigned char interlaced)532 void ipu_dc_init(int dc_chan, int di, unsigned char interlaced)
533 {
534 u32 reg = 0;
535
536 if ((dc_chan == 1) || (dc_chan == 5)) {
537 if (interlaced) {
538 ipu_dc_link_event(dc_chan, DC_EVT_NL, 0, 3);
539 ipu_dc_link_event(dc_chan, DC_EVT_EOL, 0, 2);
540 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA, 0, 1);
541 } else {
542 if (di) {
543 ipu_dc_link_event(dc_chan, DC_EVT_NL, 2, 3);
544 ipu_dc_link_event(dc_chan, DC_EVT_EOL, 3, 2);
545 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA,
546 4, 1);
547 } else {
548 ipu_dc_link_event(dc_chan, DC_EVT_NL, 5, 3);
549 ipu_dc_link_event(dc_chan, DC_EVT_EOL, 6, 2);
550 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA,
551 7, 1);
552 }
553 }
554 ipu_dc_link_event(dc_chan, DC_EVT_NF, 0, 0);
555 ipu_dc_link_event(dc_chan, DC_EVT_NFIELD, 0, 0);
556 ipu_dc_link_event(dc_chan, DC_EVT_EOF, 0, 0);
557 ipu_dc_link_event(dc_chan, DC_EVT_EOFIELD, 0, 0);
558 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN, 0, 0);
559 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR, 0, 0);
560
561 reg = 0x2;
562 reg |= DC_DISP_ID_SYNC(di) << DC_WR_CH_CONF_PROG_DISP_ID_OFFSET;
563 reg |= di << 2;
564 if (interlaced)
565 reg |= DC_WR_CH_CONF_FIELD_MODE;
566 } else if ((dc_chan == 8) || (dc_chan == 9)) {
567 /* async channels */
568 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_0, 0x64, 1);
569 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_1, 0x64, 1);
570
571 reg = 0x3;
572 reg |= DC_DISP_ID_SERIAL << DC_WR_CH_CONF_PROG_DISP_ID_OFFSET;
573 }
574 __raw_writel(reg, DC_WR_CH_CONF(dc_chan));
575
576 __raw_writel(0x00000000, DC_WR_CH_ADDR(dc_chan));
577
578 __raw_writel(0x00000084, DC_GEN);
579 }
580
ipu_dc_uninit(int dc_chan)581 void ipu_dc_uninit(int dc_chan)
582 {
583 if ((dc_chan == 1) || (dc_chan == 5)) {
584 ipu_dc_link_event(dc_chan, DC_EVT_NL, 0, 0);
585 ipu_dc_link_event(dc_chan, DC_EVT_EOL, 0, 0);
586 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA, 0, 0);
587 ipu_dc_link_event(dc_chan, DC_EVT_NF, 0, 0);
588 ipu_dc_link_event(dc_chan, DC_EVT_NFIELD, 0, 0);
589 ipu_dc_link_event(dc_chan, DC_EVT_EOF, 0, 0);
590 ipu_dc_link_event(dc_chan, DC_EVT_EOFIELD, 0, 0);
591 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN, 0, 0);
592 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR, 0, 0);
593 } else if ((dc_chan == 8) || (dc_chan == 9)) {
594 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_W_0, 0, 0);
595 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_W_1, 0, 0);
596 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_W_0, 0, 0);
597 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_W_1, 0, 0);
598 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_0, 0, 0);
599 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_1, 0, 0);
600 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_R_0, 0, 0);
601 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_R_1, 0, 0);
602 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_R_0, 0, 0);
603 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_R_1, 0, 0);
604 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_R_0, 0, 0);
605 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_R_1, 0, 0);
606 }
607 }
608
ipu_dp_dc_enable(ipu_channel_t channel)609 void ipu_dp_dc_enable(ipu_channel_t channel)
610 {
611 int di;
612 uint32_t reg;
613 uint32_t dc_chan;
614
615 if (channel == MEM_DC_SYNC)
616 dc_chan = 1;
617 else if ((channel == MEM_BG_SYNC) || (channel == MEM_FG_SYNC))
618 dc_chan = 5;
619 else
620 return;
621
622 if (channel == MEM_FG_SYNC) {
623 /* Enable FG channel */
624 reg = __raw_readl(DP_COM_CONF());
625 __raw_writel(reg | DP_COM_CONF_FG_EN, DP_COM_CONF());
626
627 reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
628 __raw_writel(reg, IPU_SRM_PRI2);
629 return;
630 }
631
632 di = g_dc_di_assignment[dc_chan];
633
634 /* Make sure other DC sync channel is not assigned same DI */
635 reg = __raw_readl(DC_WR_CH_CONF(6 - dc_chan));
636 if ((di << 2) == (reg & DC_WR_CH_CONF_PROG_DI_ID)) {
637 reg &= ~DC_WR_CH_CONF_PROG_DI_ID;
638 reg |= di ? 0 : DC_WR_CH_CONF_PROG_DI_ID;
639 __raw_writel(reg, DC_WR_CH_CONF(6 - dc_chan));
640 }
641
642 reg = __raw_readl(DC_WR_CH_CONF(dc_chan));
643 reg |= 4 << DC_WR_CH_CONF_PROG_TYPE_OFFSET;
644 __raw_writel(reg, DC_WR_CH_CONF(dc_chan));
645
646 clk_enable(g_pixel_clk[di]);
647 }
648
649 static unsigned char dc_swap;
650
ipu_dp_dc_disable(ipu_channel_t channel,unsigned char swap)651 void ipu_dp_dc_disable(ipu_channel_t channel, unsigned char swap)
652 {
653 uint32_t reg;
654 uint32_t csc;
655 uint32_t dc_chan = 0;
656 int timeout = 50;
657 int irq = 0;
658
659 dc_swap = swap;
660
661 if (channel == MEM_DC_SYNC) {
662 dc_chan = 1;
663 irq = IPU_IRQ_DC_FC_1;
664 } else if (channel == MEM_BG_SYNC) {
665 dc_chan = 5;
666 irq = IPU_IRQ_DP_SF_END;
667 } else if (channel == MEM_FG_SYNC) {
668 /* Disable FG channel */
669 dc_chan = 5;
670
671 reg = __raw_readl(DP_COM_CONF());
672 csc = reg & DP_COM_CONF_CSC_DEF_MASK;
673 if (csc == DP_COM_CONF_CSC_DEF_FG)
674 reg &= ~DP_COM_CONF_CSC_DEF_MASK;
675
676 reg &= ~DP_COM_CONF_FG_EN;
677 __raw_writel(reg, DP_COM_CONF());
678
679 reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
680 __raw_writel(reg, IPU_SRM_PRI2);
681
682 timeout = 50;
683
684 /*
685 * Wait for DC triple buffer to empty,
686 * this check is useful for tv overlay.
687 */
688 if (g_dc_di_assignment[dc_chan] == 0)
689 while ((__raw_readl(DC_STAT) & 0x00000002)
690 != 0x00000002) {
691 udelay(2000);
692 timeout -= 2;
693 if (timeout <= 0)
694 break;
695 }
696 else if (g_dc_di_assignment[dc_chan] == 1)
697 while ((__raw_readl(DC_STAT) & 0x00000020)
698 != 0x00000020) {
699 udelay(2000);
700 timeout -= 2;
701 if (timeout <= 0)
702 break;
703 }
704 return;
705 } else {
706 return;
707 }
708
709 if (dc_swap) {
710 /* Swap DC channel 1 and 5 settings, and disable old dc chan */
711 reg = __raw_readl(DC_WR_CH_CONF(dc_chan));
712 __raw_writel(reg, DC_WR_CH_CONF(6 - dc_chan));
713 reg &= ~DC_WR_CH_CONF_PROG_TYPE_MASK;
714 reg ^= DC_WR_CH_CONF_PROG_DI_ID;
715 __raw_writel(reg, DC_WR_CH_CONF(dc_chan));
716 } else {
717 /* Make sure that we leave at the irq starting edge */
718 __raw_writel(IPUIRQ_2_MASK(irq), IPUIRQ_2_STATREG(irq));
719 do {
720 reg = __raw_readl(IPUIRQ_2_STATREG(irq));
721 } while (!(reg & IPUIRQ_2_MASK(irq)));
722
723 reg = __raw_readl(DC_WR_CH_CONF(dc_chan));
724 reg &= ~DC_WR_CH_CONF_PROG_TYPE_MASK;
725 __raw_writel(reg, DC_WR_CH_CONF(dc_chan));
726
727 reg = __raw_readl(IPU_DISP_GEN);
728 if (g_dc_di_assignment[dc_chan])
729 reg &= ~DI1_COUNTER_RELEASE;
730 else
731 reg &= ~DI0_COUNTER_RELEASE;
732 __raw_writel(reg, IPU_DISP_GEN);
733
734 /* Clock is already off because it must be done quickly, but
735 we need to fix the ref count */
736 clk_disable(g_pixel_clk[g_dc_di_assignment[dc_chan]]);
737 }
738 }
739
ipu_init_dc_mappings(void)740 void ipu_init_dc_mappings(void)
741 {
742 /* IPU_PIX_FMT_RGB24 */
743 ipu_dc_map_clear(0);
744 ipu_dc_map_config(0, 0, 7, 0xFF);
745 ipu_dc_map_config(0, 1, 15, 0xFF);
746 ipu_dc_map_config(0, 2, 23, 0xFF);
747
748 /* IPU_PIX_FMT_RGB666 */
749 ipu_dc_map_clear(1);
750 ipu_dc_map_config(1, 0, 5, 0xFC);
751 ipu_dc_map_config(1, 1, 11, 0xFC);
752 ipu_dc_map_config(1, 2, 17, 0xFC);
753
754 /* IPU_PIX_FMT_YUV444 */
755 ipu_dc_map_clear(2);
756 ipu_dc_map_config(2, 0, 15, 0xFF);
757 ipu_dc_map_config(2, 1, 23, 0xFF);
758 ipu_dc_map_config(2, 2, 7, 0xFF);
759
760 /* IPU_PIX_FMT_RGB565 */
761 ipu_dc_map_clear(3);
762 ipu_dc_map_config(3, 0, 4, 0xF8);
763 ipu_dc_map_config(3, 1, 10, 0xFC);
764 ipu_dc_map_config(3, 2, 15, 0xF8);
765
766 /* IPU_PIX_FMT_LVDS666 */
767 ipu_dc_map_clear(4);
768 ipu_dc_map_config(4, 0, 5, 0xFC);
769 ipu_dc_map_config(4, 1, 13, 0xFC);
770 ipu_dc_map_config(4, 2, 21, 0xFC);
771 }
772
ipu_pixfmt_to_map(uint32_t fmt)773 static int ipu_pixfmt_to_map(uint32_t fmt)
774 {
775 switch (fmt) {
776 case IPU_PIX_FMT_GENERIC:
777 case IPU_PIX_FMT_RGB24:
778 return 0;
779 case IPU_PIX_FMT_RGB666:
780 return 1;
781 case IPU_PIX_FMT_YUV444:
782 return 2;
783 case IPU_PIX_FMT_RGB565:
784 return 3;
785 case IPU_PIX_FMT_LVDS666:
786 return 4;
787 }
788
789 return -1;
790 }
791
792 /*
793 * This function is called to initialize a synchronous LCD panel.
794 *
795 * @param disp The DI the panel is attached to.
796 *
797 * @param pixel_clk Desired pixel clock frequency in Hz.
798 *
799 * @param pixel_fmt Input parameter for pixel format of buffer.
800 * Pixel format is a FOURCC ASCII code.
801 *
802 * @param width The width of panel in pixels.
803 *
804 * @param height The height of panel in pixels.
805 *
806 * @param hStartWidth The number of pixel clocks between the HSYNC
807 * signal pulse and the start of valid data.
808 *
809 * @param hSyncWidth The width of the HSYNC signal in units of pixel
810 * clocks.
811 *
812 * @param hEndWidth The number of pixel clocks between the end of
813 * valid data and the HSYNC signal for next line.
814 *
815 * @param vStartWidth The number of lines between the VSYNC
816 * signal pulse and the start of valid data.
817 *
818 * @param vSyncWidth The width of the VSYNC signal in units of lines
819 *
820 * @param vEndWidth The number of lines between the end of valid
821 * data and the VSYNC signal for next frame.
822 *
823 * @param sig Bitfield of signal polarities for LCD interface.
824 *
825 * @return This function returns 0 on success or negative error code on
826 * fail.
827 */
828
ipu_init_sync_panel(int disp,uint32_t pixel_clk,uint16_t width,uint16_t height,uint32_t pixel_fmt,uint16_t h_start_width,uint16_t h_sync_width,uint16_t h_end_width,uint16_t v_start_width,uint16_t v_sync_width,uint16_t v_end_width,uint32_t v_to_h_sync,ipu_di_signal_cfg_t sig)829 int32_t ipu_init_sync_panel(int disp, uint32_t pixel_clk,
830 uint16_t width, uint16_t height,
831 uint32_t pixel_fmt,
832 uint16_t h_start_width, uint16_t h_sync_width,
833 uint16_t h_end_width, uint16_t v_start_width,
834 uint16_t v_sync_width, uint16_t v_end_width,
835 uint32_t v_to_h_sync, ipu_di_signal_cfg_t sig)
836 {
837 uint32_t reg;
838 uint32_t di_gen, vsync_cnt;
839 uint32_t div, rounded_pixel_clk;
840 uint32_t h_total, v_total;
841 int map;
842 struct clk *di_parent;
843
844 debug("panel size = %d x %d\n", width, height);
845
846 if ((v_sync_width == 0) || (h_sync_width == 0))
847 return -EINVAL;
848
849 /* adapt panel to ipu restricitions */
850 if (v_end_width < 2) {
851 v_end_width = 2;
852 puts("WARNING: v_end_width (lower_margin) must be >= 2, adjusted\n");
853 }
854
855 h_total = width + h_sync_width + h_start_width + h_end_width;
856 v_total = height + v_sync_width + v_start_width + v_end_width;
857
858 /* Init clocking */
859 debug("pixel clk = %dHz\n", pixel_clk);
860
861 if (sig.ext_clk) {
862 if (!(g_di1_tvout && (disp == 1))) { /*not round div for tvout*/
863 /*
864 * Set the PLL to be an even multiple
865 * of the pixel clock.
866 */
867 if ((clk_get_usecount(g_pixel_clk[0]) == 0) &&
868 (clk_get_usecount(g_pixel_clk[1]) == 0)) {
869 di_parent = clk_get_parent(g_di_clk[disp]);
870 rounded_pixel_clk =
871 clk_round_rate(g_pixel_clk[disp],
872 pixel_clk);
873 div = clk_get_rate(di_parent) /
874 rounded_pixel_clk;
875 if (div % 2)
876 div++;
877 if (clk_get_rate(di_parent) != div *
878 rounded_pixel_clk)
879 clk_set_rate(di_parent,
880 div * rounded_pixel_clk);
881 udelay(10000);
882 clk_set_rate(g_di_clk[disp],
883 2 * rounded_pixel_clk);
884 udelay(10000);
885 }
886 }
887 clk_set_parent(g_pixel_clk[disp], g_ldb_clk);
888 } else {
889 if (clk_get_usecount(g_pixel_clk[disp]) != 0)
890 clk_set_parent(g_pixel_clk[disp], g_ipu_clk);
891 }
892 rounded_pixel_clk = clk_round_rate(g_pixel_clk[disp], pixel_clk);
893 clk_set_rate(g_pixel_clk[disp], rounded_pixel_clk);
894 udelay(5000);
895 /* Get integer portion of divider */
896 div = clk_get_rate(clk_get_parent(g_pixel_clk[disp])) /
897 rounded_pixel_clk;
898
899 ipu_di_data_wave_config(disp, SYNC_WAVE, div - 1, div - 1);
900 ipu_di_data_pin_config(disp, SYNC_WAVE, DI_PIN15, 3, 0, div * 2);
901
902 map = ipu_pixfmt_to_map(pixel_fmt);
903 if (map < 0) {
904 debug("IPU_DISP: No MAP\n");
905 return -EINVAL;
906 }
907
908 di_gen = __raw_readl(DI_GENERAL(disp));
909
910 if (sig.interlaced) {
911 /* Setup internal HSYNC waveform */
912 ipu_di_sync_config(
913 disp, /* display */
914 1, /* counter */
915 h_total / 2 - 1,/* run count */
916 DI_SYNC_CLK, /* run_resolution */
917 0, /* offset */
918 DI_SYNC_NONE, /* offset resolution */
919 0, /* repeat count */
920 DI_SYNC_NONE, /* CNT_CLR_SEL */
921 0, /* CNT_POLARITY_GEN_EN */
922 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
923 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
924 0, /* COUNT UP */
925 0 /* COUNT DOWN */
926 );
927
928 /* Field 1 VSYNC waveform */
929 ipu_di_sync_config(
930 disp, /* display */
931 2, /* counter */
932 h_total - 1, /* run count */
933 DI_SYNC_CLK, /* run_resolution */
934 0, /* offset */
935 DI_SYNC_NONE, /* offset resolution */
936 0, /* repeat count */
937 DI_SYNC_NONE, /* CNT_CLR_SEL */
938 0, /* CNT_POLARITY_GEN_EN */
939 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
940 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
941 0, /* COUNT UP */
942 4 /* COUNT DOWN */
943 );
944
945 /* Setup internal HSYNC waveform */
946 ipu_di_sync_config(
947 disp, /* display */
948 3, /* counter */
949 v_total * 2 - 1,/* run count */
950 DI_SYNC_INT_HSYNC, /* run_resolution */
951 1, /* offset */
952 DI_SYNC_INT_HSYNC, /* offset resolution */
953 0, /* repeat count */
954 DI_SYNC_NONE, /* CNT_CLR_SEL */
955 0, /* CNT_POLARITY_GEN_EN */
956 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
957 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
958 0, /* COUNT UP */
959 4 /* COUNT DOWN */
960 );
961
962 /* Active Field ? */
963 ipu_di_sync_config(
964 disp, /* display */
965 4, /* counter */
966 v_total / 2 - 1,/* run count */
967 DI_SYNC_HSYNC, /* run_resolution */
968 v_start_width, /* offset */
969 DI_SYNC_HSYNC, /* offset resolution */
970 2, /* repeat count */
971 DI_SYNC_VSYNC, /* CNT_CLR_SEL */
972 0, /* CNT_POLARITY_GEN_EN */
973 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
974 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
975 0, /* COUNT UP */
976 0 /* COUNT DOWN */
977 );
978
979 /* Active Line */
980 ipu_di_sync_config(
981 disp, /* display */
982 5, /* counter */
983 0, /* run count */
984 DI_SYNC_HSYNC, /* run_resolution */
985 0, /* offset */
986 DI_SYNC_NONE, /* offset resolution */
987 height / 2, /* repeat count */
988 4, /* CNT_CLR_SEL */
989 0, /* CNT_POLARITY_GEN_EN */
990 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
991 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
992 0, /* COUNT UP */
993 0 /* COUNT DOWN */
994 );
995
996 /* Field 0 VSYNC waveform */
997 ipu_di_sync_config(
998 disp, /* display */
999 6, /* counter */
1000 v_total - 1, /* run count */
1001 DI_SYNC_HSYNC, /* run_resolution */
1002 0, /* offset */
1003 DI_SYNC_NONE, /* offset resolution */
1004 0, /* repeat count */
1005 DI_SYNC_NONE, /* CNT_CLR_SEL */
1006 0, /* CNT_POLARITY_GEN_EN */
1007 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
1008 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
1009 0, /* COUNT UP */
1010 0 /* COUNT DOWN */
1011 );
1012
1013 /* DC VSYNC waveform */
1014 vsync_cnt = 7;
1015 ipu_di_sync_config(
1016 disp, /* display */
1017 7, /* counter */
1018 v_total / 2 - 1,/* run count */
1019 DI_SYNC_HSYNC, /* run_resolution */
1020 9, /* offset */
1021 DI_SYNC_HSYNC, /* offset resolution */
1022 2, /* repeat count */
1023 DI_SYNC_VSYNC, /* CNT_CLR_SEL */
1024 0, /* CNT_POLARITY_GEN_EN */
1025 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
1026 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
1027 0, /* COUNT UP */
1028 0 /* COUNT DOWN */
1029 );
1030
1031 /* active pixel waveform */
1032 ipu_di_sync_config(
1033 disp, /* display */
1034 8, /* counter */
1035 0, /* run count */
1036 DI_SYNC_CLK, /* run_resolution */
1037 h_start_width, /* offset */
1038 DI_SYNC_CLK, /* offset resolution */
1039 width, /* repeat count */
1040 5, /* CNT_CLR_SEL */
1041 0, /* CNT_POLARITY_GEN_EN */
1042 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
1043 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
1044 0, /* COUNT UP */
1045 0 /* COUNT DOWN */
1046 );
1047
1048 ipu_di_sync_config(
1049 disp, /* display */
1050 9, /* counter */
1051 v_total - 1, /* run count */
1052 DI_SYNC_INT_HSYNC,/* run_resolution */
1053 v_total / 2, /* offset */
1054 DI_SYNC_INT_HSYNC,/* offset resolution */
1055 0, /* repeat count */
1056 DI_SYNC_HSYNC, /* CNT_CLR_SEL */
1057 0, /* CNT_POLARITY_GEN_EN */
1058 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
1059 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
1060 0, /* COUNT UP */
1061 4 /* COUNT DOWN */
1062 );
1063
1064 /* set gentime select and tag sel */
1065 reg = __raw_readl(DI_SW_GEN1(disp, 9));
1066 reg &= 0x1FFFFFFF;
1067 reg |= (3 - 1)<<29 | 0x00008000;
1068 __raw_writel(reg, DI_SW_GEN1(disp, 9));
1069
1070 __raw_writel(v_total / 2 - 1, DI_SCR_CONF(disp));
1071
1072 /* set y_sel = 1 */
1073 di_gen |= 0x10000000;
1074 di_gen |= DI_GEN_POLARITY_5;
1075 di_gen |= DI_GEN_POLARITY_8;
1076 } else {
1077 /* Setup internal HSYNC waveform */
1078 ipu_di_sync_config(disp, 1, h_total - 1, DI_SYNC_CLK,
1079 0, DI_SYNC_NONE, 0, DI_SYNC_NONE,
1080 0, DI_SYNC_NONE,
1081 DI_SYNC_NONE, 0, 0);
1082
1083 /* Setup external (delayed) HSYNC waveform */
1084 ipu_di_sync_config(disp, DI_SYNC_HSYNC, h_total - 1,
1085 DI_SYNC_CLK, div * v_to_h_sync, DI_SYNC_CLK,
1086 0, DI_SYNC_NONE, 1, DI_SYNC_NONE,
1087 DI_SYNC_CLK, 0, h_sync_width * 2);
1088 /* Setup VSYNC waveform */
1089 vsync_cnt = DI_SYNC_VSYNC;
1090 ipu_di_sync_config(disp, DI_SYNC_VSYNC, v_total - 1,
1091 DI_SYNC_INT_HSYNC, 0, DI_SYNC_NONE, 0,
1092 DI_SYNC_NONE, 1, DI_SYNC_NONE,
1093 DI_SYNC_INT_HSYNC, 0, v_sync_width * 2);
1094 __raw_writel(v_total - 1, DI_SCR_CONF(disp));
1095
1096 /* Setup active data waveform to sync with DC */
1097 ipu_di_sync_config(disp, 4, 0, DI_SYNC_HSYNC,
1098 v_sync_width + v_start_width, DI_SYNC_HSYNC,
1099 height,
1100 DI_SYNC_VSYNC, 0, DI_SYNC_NONE,
1101 DI_SYNC_NONE, 0, 0);
1102 ipu_di_sync_config(disp, 5, 0, DI_SYNC_CLK,
1103 h_sync_width + h_start_width, DI_SYNC_CLK,
1104 width, 4, 0, DI_SYNC_NONE, DI_SYNC_NONE, 0,
1105 0);
1106
1107 /* reset all unused counters */
1108 __raw_writel(0, DI_SW_GEN0(disp, 6));
1109 __raw_writel(0, DI_SW_GEN1(disp, 6));
1110 __raw_writel(0, DI_SW_GEN0(disp, 7));
1111 __raw_writel(0, DI_SW_GEN1(disp, 7));
1112 __raw_writel(0, DI_SW_GEN0(disp, 8));
1113 __raw_writel(0, DI_SW_GEN1(disp, 8));
1114 __raw_writel(0, DI_SW_GEN0(disp, 9));
1115 __raw_writel(0, DI_SW_GEN1(disp, 9));
1116
1117 reg = __raw_readl(DI_STP_REP(disp, 6));
1118 reg &= 0x0000FFFF;
1119 __raw_writel(reg, DI_STP_REP(disp, 6));
1120 __raw_writel(0, DI_STP_REP(disp, 7));
1121 __raw_writel(0, DI_STP_REP9(disp));
1122
1123 /* Init template microcode */
1124 if (disp) {
1125 ipu_dc_write_tmpl(2, WROD(0), 0, map, SYNC_WAVE, 8, 5);
1126 ipu_dc_write_tmpl(3, WROD(0), 0, map, SYNC_WAVE, 4, 5);
1127 ipu_dc_write_tmpl(4, WROD(0), 0, map, SYNC_WAVE, 0, 5);
1128 } else {
1129 ipu_dc_write_tmpl(5, WROD(0), 0, map, SYNC_WAVE, 8, 5);
1130 ipu_dc_write_tmpl(6, WROD(0), 0, map, SYNC_WAVE, 4, 5);
1131 ipu_dc_write_tmpl(7, WROD(0), 0, map, SYNC_WAVE, 0, 5);
1132 }
1133
1134 if (sig.Hsync_pol)
1135 di_gen |= DI_GEN_POLARITY_2;
1136 if (sig.Vsync_pol)
1137 di_gen |= DI_GEN_POLARITY_3;
1138
1139 if (!sig.clk_pol)
1140 di_gen |= DI_GEN_POL_CLK;
1141
1142 }
1143
1144 __raw_writel(di_gen, DI_GENERAL(disp));
1145
1146 __raw_writel((--vsync_cnt << DI_VSYNC_SEL_OFFSET) |
1147 0x00000002, DI_SYNC_AS_GEN(disp));
1148
1149 reg = __raw_readl(DI_POL(disp));
1150 reg &= ~(DI_POL_DRDY_DATA_POLARITY | DI_POL_DRDY_POLARITY_15);
1151 if (sig.enable_pol)
1152 reg |= DI_POL_DRDY_POLARITY_15;
1153 if (sig.data_pol)
1154 reg |= DI_POL_DRDY_DATA_POLARITY;
1155 __raw_writel(reg, DI_POL(disp));
1156
1157 __raw_writel(width, DC_DISP_CONF2(DC_DISP_ID_SYNC(disp)));
1158
1159 return 0;
1160 }
1161
1162 /*
1163 * This function sets the foreground and background plane global alpha blending
1164 * modes. This function also sets the DP graphic plane according to the
1165 * parameter of IPUv3 DP channel.
1166 *
1167 * @param channel IPUv3 DP channel
1168 *
1169 * @param enable Boolean to enable or disable global alpha
1170 * blending. If disabled, local blending is used.
1171 *
1172 * @param alpha Global alpha value.
1173 *
1174 * @return Returns 0 on success or negative error code on fail
1175 */
ipu_disp_set_global_alpha(ipu_channel_t channel,unsigned char enable,uint8_t alpha)1176 int32_t ipu_disp_set_global_alpha(ipu_channel_t channel, unsigned char enable,
1177 uint8_t alpha)
1178 {
1179 uint32_t reg;
1180
1181 unsigned char bg_chan;
1182
1183 if (!((channel == MEM_BG_SYNC || channel == MEM_FG_SYNC) ||
1184 (channel == MEM_BG_ASYNC0 || channel == MEM_FG_ASYNC0) ||
1185 (channel == MEM_BG_ASYNC1 || channel == MEM_FG_ASYNC1)))
1186 return -EINVAL;
1187
1188 if (channel == MEM_BG_SYNC || channel == MEM_BG_ASYNC0 ||
1189 channel == MEM_BG_ASYNC1)
1190 bg_chan = 1;
1191 else
1192 bg_chan = 0;
1193
1194 if (bg_chan) {
1195 reg = __raw_readl(DP_COM_CONF());
1196 __raw_writel(reg & ~DP_COM_CONF_GWSEL, DP_COM_CONF());
1197 } else {
1198 reg = __raw_readl(DP_COM_CONF());
1199 __raw_writel(reg | DP_COM_CONF_GWSEL, DP_COM_CONF());
1200 }
1201
1202 if (enable) {
1203 reg = __raw_readl(DP_GRAPH_WIND_CTRL()) & 0x00FFFFFFL;
1204 __raw_writel(reg | ((uint32_t) alpha << 24),
1205 DP_GRAPH_WIND_CTRL());
1206
1207 reg = __raw_readl(DP_COM_CONF());
1208 __raw_writel(reg | DP_COM_CONF_GWAM, DP_COM_CONF());
1209 } else {
1210 reg = __raw_readl(DP_COM_CONF());
1211 __raw_writel(reg & ~DP_COM_CONF_GWAM, DP_COM_CONF());
1212 }
1213
1214 reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
1215 __raw_writel(reg, IPU_SRM_PRI2);
1216
1217 return 0;
1218 }
1219
1220 /*
1221 * This function sets the transparent color key for SDC graphic plane.
1222 *
1223 * @param channel Input parameter for the logical channel ID.
1224 *
1225 * @param enable Boolean to enable or disable color key
1226 *
1227 * @param colorKey 24-bit RGB color for transparent color key.
1228 *
1229 * @return Returns 0 on success or negative error code on fail
1230 */
ipu_disp_set_color_key(ipu_channel_t channel,unsigned char enable,uint32_t color_key)1231 int32_t ipu_disp_set_color_key(ipu_channel_t channel, unsigned char enable,
1232 uint32_t color_key)
1233 {
1234 uint32_t reg;
1235 int y, u, v;
1236 int red, green, blue;
1237
1238 if (!((channel == MEM_BG_SYNC || channel == MEM_FG_SYNC) ||
1239 (channel == MEM_BG_ASYNC0 || channel == MEM_FG_ASYNC0) ||
1240 (channel == MEM_BG_ASYNC1 || channel == MEM_FG_ASYNC1)))
1241 return -EINVAL;
1242
1243 color_key_4rgb = 1;
1244 /* Transform color key from rgb to yuv if CSC is enabled */
1245 if (((fg_csc_type == RGB2YUV) && (bg_csc_type == YUV2YUV)) ||
1246 ((fg_csc_type == YUV2YUV) && (bg_csc_type == RGB2YUV)) ||
1247 ((fg_csc_type == YUV2YUV) && (bg_csc_type == YUV2YUV)) ||
1248 ((fg_csc_type == YUV2RGB) && (bg_csc_type == YUV2RGB))) {
1249
1250 debug("color key 0x%x need change to yuv fmt\n", color_key);
1251
1252 red = (color_key >> 16) & 0xFF;
1253 green = (color_key >> 8) & 0xFF;
1254 blue = color_key & 0xFF;
1255
1256 y = rgb_to_yuv(0, red, green, blue);
1257 u = rgb_to_yuv(1, red, green, blue);
1258 v = rgb_to_yuv(2, red, green, blue);
1259 color_key = (y << 16) | (u << 8) | v;
1260
1261 color_key_4rgb = 0;
1262
1263 debug("color key change to yuv fmt 0x%x\n", color_key);
1264 }
1265
1266 if (enable) {
1267 reg = __raw_readl(DP_GRAPH_WIND_CTRL()) & 0xFF000000L;
1268 __raw_writel(reg | color_key, DP_GRAPH_WIND_CTRL());
1269
1270 reg = __raw_readl(DP_COM_CONF());
1271 __raw_writel(reg | DP_COM_CONF_GWCKE, DP_COM_CONF());
1272 } else {
1273 reg = __raw_readl(DP_COM_CONF());
1274 __raw_writel(reg & ~DP_COM_CONF_GWCKE, DP_COM_CONF());
1275 }
1276
1277 reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
1278 __raw_writel(reg, IPU_SRM_PRI2);
1279
1280 return 0;
1281 }
1282